How to safely spend the summer for fattening pigs

Because of the thick subcutaneous fat, fattening pigs prevent a large amount of heat emission from the body, coupled with sweat gland degeneration, and can not release a large amount of body heat in the form of sweating, so fattening pigs are very afraid of heat and are sensitive to heat stress. The most suitable temperature for the growth of finishing pigs is 15 ℃-23 ℃. When the air temperature is higher than 25 ℃, there will be loss of appetite, reduced feeding, increased body temperature, increased respiratory frequency, slow growth and other symptoms. If the heat persists, it may even lead to death from heatstroke. Therefore, it is very important to do well the safe summer work of fattening pigs.

Strengthen ventilation, open the doors and windows of the pig house, ensure the ventilation of the pig house, install ceiling fans in the pig house, produce horizontal air flow and promote the drop of body temperature. if necessary, exhaust fans can be installed on the roof to vent rising heat, and ventilators are installed on the walls. make the air pass through the pig house and increase the ventilation of the pig house.

Lower the temperature of the house, wash the floor of the enclosure with cool water, the wall is cooled, and the connecting pipe with tap water condition is washed several times a day in the middle and afternoon. If there is no tap water, use a basin to wash down the temperature of the house. You can also use water to lower the temperature of the pig. Spray or shower the pig body 2-4 times a day, which can help the pig body to dissipate heat. The temperature of the water coming out of the well is relatively low. It can be used to wash the pig body for a while in the sun, which can be used for cooling. It can also make the pig clean and hygienic, but flushing the pig body with water should be arranged before feeding and cannot be washed within 30 minutes after feeding, let alone suddenly wash the pig's head with water to prevent strong contraction of blood vessels in the head and shock.

If the temperature is high enough to drink water in summer, the pig's body temperature will also be affected. if there is enough drinking water, the body temperature will rise under the regulation of water. The pig can expel the moisture from the respiratory tract of the lungs through rapid breathing and take away part of the residual heat with moisture. In summer, pigs drink 23% of their body weight, 25% of their body weight, and can drink 0.5% of salt water to regulate their body temperature. keep enough clean water in the sink.

Adjust nutrition in summer when the ambient temperature exceeds 25 °C, in order to reduce heat production, pigs' intake of energy feed is reduced, and the intake of other nutrients is also reduced accordingly, which requires dietary compensation with a higher level of nutrition. Therefore, when preparing diets for fattening pigs in summer, they can appropriately reduce their energy feed and increase their protein, mineral and multi-dimensional levels. At the height of summer, the energy feed in the pig diet accounted for 50% Mel 70%, and the green feed increased from 0.5 kg to 1.5 kg. The feed should be fresh and mildew-free.

Proper supplement of green and green succulent feed has good palatability and is rich in a variety of vitamins, which can increase the feed intake of fattening pigs and is beneficial to health and heat prevention. When it is hot in summer, you can properly feed fattening pigs some grass, melon peel, carrots or fresh vegetables.

Feed heat prevention (1) mung bean soup, take the right amount of mung beans, add water 20 times boil until the skin rotten, cool after drinking soup to eat beans. (2) Plantago asiatica and Phyllostachys pubescens plants are fried in water or soup and mixed with feed to feed pigs. (3) mash 2000 grams of fresh watermelon peel and mix with 100g sugar, once every other day. (4) in order to prevent the occurrence of heat stress, cool blood Fuzheng drink can be added to drinking water.

Do a good job in hygiene and open all the vents in the pigsty to make the pig cool and comfortable. The sanitary sand grains 3-5 cm thick are laid in the house, and the heat is dissipated through the contact between the pig body and the sand grains. Every day, the walls and floors are disinfected with 20% lime, the utensils are disinfected with 3% carbonic acid solution, and the pig houses are disinfected with Wanliukang.

Mosquitoes, flies and mosquitoes can be dried in the shade, chopped castor can be smoked with 25 grams per cubic meter of space, 1000 parts of trichlorfon and water can be sprayed to kill flies, or drugs that are small and harmless to pigs can be sprayed in the pig house.

The temperature of preventing epidemic disease is high in summer, and the growth and reproduction of pathogenic microorganisms are becoming more and more active. Therefore, the prevention and control of the epidemic disease of fattening pigs should be strengthened, the food trough should be washed at least once a day, pig manure should be regularly removed, pig houses and surrounding environment should be disinfected regularly with Wanliukang, and no moldy and deteriorated feed should be fed. We should do a good job in the prevention of infectious diseases such as classical swine fever, swine erysipelas and swine lung disease in strict accordance with epidemic prevention procedures to ensure that fattening pigs spend the summer safely.